Which number should come next in this series? 25, 24, 22, 19, 15

The given series seems to follow a specific pattern where each subsequent number is obtained by decreasing the previous number by a certain amount.

1. Identifying the Pattern: To find the pattern, we observe the differences between consecutive terms in the series:

- From 25 to 24: Decrease by 1

- From 24 to 22: Decrease by 2

- From 22 to 19: Decrease by 3

- From 19 to 15: Decrease by 4

2. Consistency in Decrease: Each subsequent term decreases by an increment of 1 compared to the previous decrease:

- 1, 2, 3, 4

3. Applying the Pattern: Following the pattern observed in the differences between consecutive terms, the next decrease should be by 5:

- From 15, subtract 5: 15 - 5 = 10

4. Determining the Next Number: By subtracting 5 from the last number in the series (15), we get the next number in the series, which is 10.

5. Rule Application: This series follows a consistent pattern of decreasing each subsequent number by an incrementing amount. This pattern allows us to determine the next number in the series by applying the same rule consistently.

Therefore, based on the identified pattern and rule, the next number in the series is 10. This conclusion aligns with the observed pattern and the rules governing the series.